capable of common lymphoid progenitor CLP ELP common lymphocyte precursor committed lymphopoietic stem cell lymphopoietic stem cell early lymphocyte progenitor common lymphoid precursor A oligopotent progenitor cell committed to the lymphoid lineage. common lymphocyte progenitor CLP are CD7-positive, CD10-positive, CD19-negative, CD34-positive, CD45RA-positive, CD79a-negative, CD127-positive, AA4.1-positive, RAG-negative, Sca-1-low, sIgM-negative, sIgD-negative, TdT-negative, Vpre-B-negative, and pre-BCR-negative. Expression of transcription factors include E2A-positive, EBF-positive, Ikaros-negative, PU.1-negative, and Pax5-negative. lymphoid stem cell hematopoietic oligopotent progenitor cell progenitor cell lymphocyte differentiation